MTH turbine pumps for low flows and high pressures

MTH regenerative turbine pumps are a reliable and economic pumping solution for applications involving low flows (130 lit/min) high pressures (up to 70 bar) and heads up to 600 m, including boiler feed, high pressure cooling, refrigeration and CIP process.

The compact pumps, which are available in direct drive, bareshaft, magnetic drive and canned rotor options, can replace multistage pumps, generating high heads in only a single stage. This design allows the pump to handle hot liquids, refrigerants, liquefied gases and liquids with entrained air, for example gas dissolution systems, where the pump will self vent carrying air bubbles with the fluid to the discharge port.

The regenerative turbine pump is characterised by its unique impeller, which has a large number of blades machined into both sides of its periphery. Fluid enters the impeller at its outside diameter and is accelerated as it passes from blade to blade exiting the pump, at the same radius as the inlet. The row of blades located on each side of the impeller minimises axial thrust; in effect, it is two impellers in one, operating within identical channels on the casing and the cover, which allows the impeller to float freely and find its own equilibrium.

Another important advantage of the regenerative turbine pump is its ability to generate a very steeply rising head curve between minimum and maximum flow ensuring accurate flow control and stable operation. The standard range of MTH pumps includes models which cover capacities from 1 to 500 lit/min and pressures up to 70 bar.

Adapted from press release by Rosalie Starling

Published on 06/03/2015

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